K 10
svn:author
V 3
mav
K 8
svn:date
V 27
2013-04-24T19:36:40.258319Z
K 7
svn:log
V 215
MFC r249346:
Create controller-level DMA tag, handling range of supported addresses.
That simplifies logic for channels and gives the bus information about what
device actually allocated the tag.

Submitted by:	jhb

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